A learning method that I like to use is to alternate between jiggling ( or raking), and single pin picking.. Try to get as close as possible to being able to single pin pick as fast as you can jiggle it open. This satisfies the urge to open the lock and also teaches you how the lock responds and maybe why jiggling works so well. Always try to visualize the inside of the lock and adapt to whatever feedback you get from pick and wrench.
Alternating can be frustrating, so take a break every now and then, or jiggle it open a few times. You may end up getting really good at jiggling or raking the lock open. Try to catch up on your single pin picking though. It's very important if you wanna move on to more difficult locks!
Also, play with the tension! Even when wiggling the lock open, try to lessen the tension and see how little you can get away with. You may be pleasantly surprised when your hand no longer gets cramped up after a long picking session!
Most of all, try to think about what you are doing, and listen to what the lock tells you!
If it's a padlock that you are working on, then you can practice your dancing when the shackle opens!
Good luck!
If it ain't broke.....pull it down and see how it works anyway!
